Qt-interest Archive, March 2007
Question about QRegExp
Message 1 in thread
I have a QLineEdit where I only want to enter digits with a ',' or a '-'
character ,the first character must be a digit and a ',' or a '-' must be
followed by a digit.
This is what I have tried and it work, but I must repeat the [,,-]\\d{0,6}
sequence for as many times as I want to enter ',' or '-' characters. I would
appreciate it if someone can help me with a more elegant way of doing this.
QRegExp rx("[1-9]\\d{0,6}[,,-]\\d{0,6}[,,-]\\d{0,6}[,,-]\\d{0,6}");
In the above example one can only enter a ',' or a '-' 3 times.
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Message 2 in thread
Hi,
Chris wrote:
> I have a QLineEdit where I only want to enter digits with a ',' or a '-'
> character ,the first character must be a digit and a ',' or a '-' must be
> followed by a digit.
>
> This is what I have tried and it work, but I must repeat the [,,-]\\d{0,6}
> sequence for as many times as I want to enter ',' or '-' characters. I would
> appreciate it if someone can help me with a more elegant way of doing this.
>
> QRegExp rx("[1-9]\\d{0,6}[,,-]\\d{0,6}[,,-]\\d{0,6}[,,-]\\d{0,6}");
>
> In the above example one can only enter a ',' or a '-' 3 times.
Make a subexpression:
[1-9](\d{0,6}[,-]){3}\d{0,6}
Tim
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Message 3 in thread
On Tuesday 13 March 2007 15:54, Tim Dewhirst wrote:
> Hi,
>
> Chris wrote:
> > I have a QLineEdit where I only want to enter digits with a ',' or a '-'
> > character ,the first character must be a digit and a ',' or a '-' must be
> > followed by a digit.
> >
> > This is what I have tried and it work, but I must repeat the
> > [,,-]\\d{0,6} sequence for as many times as I want to enter ',' or '-'
> > characters. I would appreciate it if someone can help me with a more
> > elegant way of doing this.
> >
> > QRegExp rx("[1-9]\\d{0,6}[,,-]\\d{0,6}[,,-]\\d{0,6}[,,-]\\d{0,6}");
> >
> > In the above example one can only enter a ',' or a '-' 3 times.
>
> Make a subexpression:
>
> [1-9](\d{0,6}[,-]){3}\d{0,6}
>
> Tim
>
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Thanks Tim.
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